CN201725649U - Integrated inductor - Google Patents
Integrated inductor Download PDFInfo
- Publication number
- CN201725649U CN201725649U CN2010203011908U CN201020301190U CN201725649U CN 201725649 U CN201725649 U CN 201725649U CN 2010203011908 U CN2010203011908 U CN 2010203011908U CN 201020301190 U CN201020301190 U CN 201020301190U CN 201725649 U CN201725649 U CN 201725649U
- Authority
- CN
- China
- Prior art keywords
- plug
- cavity
- housing
- coil
- inductor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 208000002925 dental caries Diseases 0.000 claims description 8
- 238000000034 method Methods 0.000 abstract description 7
- 230000006698 induction Effects 0.000 abstract 1
- 238000004804 winding Methods 0.000 description 6
- 238000005266 casting Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000003292 glue Substances 0.000 description 4
- 230000002457 bidirectional effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 229910000859 α-Fe Inorganic materials 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 210000003298 dental enamel Anatomy 0.000 description 2
- XWHPIFXRKKHEKR-UHFFFAOYSA-N iron silicon Chemical compound [Si].[Fe] XWHPIFXRKKHEKR-UHFFFAOYSA-N 0.000 description 2
- 229910001092 metal group alloy Inorganic materials 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000002210 silicon-based material Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- QELJHCBNGDEXLD-UHFFFAOYSA-N nickel zinc Chemical compound [Ni].[Zn] QELJHCBNGDEXLD-UHFFFAOYSA-N 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229910000702 sendust Inorganic materials 0.000 description 1
Images
Landscapes
- Coils Or Transformers For Communication (AREA)
Abstract
The utility model discloses an integrated inductor, which comprises a magnetic core and coils; the magnetic core comprises a casing and core rods which form a parted structure; the casing adopts an integrated structure; a plurality of cavities for accommodating the coils and the core rods are arranged on the casing; the core rod adopt column structure and arranged in the cavities on the casing; and a hollow coil is sleeved on each core rod. The utility model effectively solves the problems of large volume and complex assembly technique of a separate inductor in the prior art and the problems of easy breakage of a magnet body and greater mutual induction between two inductors of an integrated inductor in the prior art. The utility model has the characteristics of small volume, simple assembly, firm structure, high efficiency, large saturation current, small temperature rise, wide market prospect and the like, has less influence to others when used independently, and can be extensively applied to various DC converting circuits.
Description
Technical field
The utility model relates to a kind of inductor, especially relates to a kind of integrated integral inductor.
Background technology
The inductor of prior art mostly adopts EI, EE, the isostructural magnetic core of EP, PQ, and these magnetic cores have only a newel, constitutes inductor thereby coil is set on this newel.And in a lot of circuit such as filter, often need to use a plurality of inductance, thereby cause the long-pending increase of outfit of equipment, the assembly technology complexity.Day by day to miniaturization, integrated today, electronic devices and components are also towards miniaturization, integrated development at electronic equipment, and this bulky discrete inductance more and more can not satisfy electronics miniaturization, integrated needs.Open day is on August 5th, 2009, publication number is that the Chinese patent file of CN101499364A discloses a kind of magnetic core and integrated inductor thereof, comprise a magnet, magnet is provided with an end face, edge in the end face both sides is provided with sidewall, end face is provided with at least two post cores that extend out, the magnetic sheet that can lean against on sidewall and the post core end face, and post core end face and magnetic sheet directly maintain magnetic gap.Or two described magnets and one are arranged on the magnetic sheet that can lean against between them on sidewall and the post core end face.Be provided with first coil and second coil on the post core of above-mentioned magnetic core, first coil on each post core and second coil be series connection mutually respectively, and the two ends of each coil are separately positioned on the pin.Above-mentioned magnetic core and integrated inductor thereof are because employing is provided with sidewall in a plurality of post cores periphery, therefore sidewall is in order to be trapped among by the post core, inevitable along with the post core must increase or increase and correspondingly increases sectional area, make a plurality of post cores can use the path of sidewall jointly as magnetic loop, by adopting common side-wall to solve the original sidewall separately of each post core, therefore reduced volume greatly.This structure is set up in parallel a plurality of post cores on incorporate magnet, a plurality of stem stems share same peripheral magnet, thereby reaches the purpose that reduces the inductance cumulative volume.But this structure is only applicable to the bigger inductor of making capacity, for small inductance, and the small inductance of especially big electric current small inductor amount, the plug cross section on the magnet is less, and the processing of magnetic core and assembling are all very difficult, and magnet is broken easily.In addition, because the complete public identical peripheral magnet of a plurality of stem stems, so the mutual inductance between the inductance is bigger on the magnet, the inductance on the magnet influences each other very big when independently using.
The utility model content
The utility model is big for the volume that the discrete inductor that solves prior art exists, the assembly technology complicated problems provides a kind of volume little, assembles simple integral inductor.
Another purpose of the present utility model is that the magnet that exists for the integrated inductor that solves prior art is broken easily, little integral inductor is provided when providing inductance on sound construction, the magnet independently to use the bigger problem of mutual inductance between the inductance.
The utility model is to reach the concrete technical scheme that above-mentioned technical purpose adopts to be: a kind of integral inductor, comprise magnetic core and coil, described magnetic core comprises housing and plug, housing and plug are for dividing body structure, the rectangular structure that described housing is integrated, housing are provided with several cavitys that holds coil and plug, and described plug is column structure, be arranged in the cavity on the housing, be arranged with air core coil on the plug.On an incorporate rectangular structure housing, a plurality of cavitys that hold coil and plug are set, like this, just a plurality of inductance can be set on the same housing, the connection in series-parallel that not only helps between the inductance connects, simultaneously, because a plurality of inductance concentrate on the housing, made full use of the effective volume of housing, eliminated the space between traditional discrete inductance, thereby effectively saved the space of equipment, compared with general inductor, when guaranteeing identical electrical characteristic, effectively reduced the assembling area of device, reduced the volume of electronic equipment, the rectangular structure here also comprises cube structure.In addition, owing to adopted the split-type structural of magnetic core housing and plug, simplify core structure, helped the processing of magnetic core, simultaneously, also simplified the coiling of coil and the assembling of inductance greatly, reduced the breakage rate of magnetic core, reduced production cost.
As preferably, the opening of described cavity is arranged on the same one side of cuboid.The opening of cavity is arranged on the same one side of cuboid can make the same one side of the pin of inductance coil at integral inductor, helps the assembling of inductor in printed board.
As preferably, the cross section of plug is circular, oval, rectangle or polygonized structure.Cross section is that the plug of circle or rectangle is the common structure of inductor core, and is especially circular, owing to advantages such as coil winding are convenient relatively, D.C. resistance is little, leakage field is few, is the optimal selection of magnetic core plug.
As preferably, cavity is a rectangular structure, and the quantity of cavity is more than or equal to two, cavity big or small identical.The rectangular structure here also comprises cube structure.
As preferably, cavity is arranged in a linear, and the spacing distance between the cavity equates that cavity is single-row or the multiple row structure.The spread pattern of cavity can be selected according to quantity, the series parallel structure of inductance, and, overall volume easy to assembly to satisfy is little to be selection principle.
Usually in the cavity plug is set, promptly the corresponding inductance of cavity also can be provided with two or more inductance in a cavity.
As preferably, be provided with the space between the chamber wall of the end face of described plug and cavity.The length that is provided with the space between the chamber wall of the end face of plug and cavity and is plug is less than the distance between the relative two chamber walls of cavity, we can utilize space between plug and the cavity chamber wall as the air-gap of inductance, like this, this space not only can make things convenient for the assembling of plug, under the bigger situation of electric current, inductance saturated phenomenon can not occur yet simultaneously.
The manufacture method of integral inductor generally includes the following step:
A. adopt soft magnetic ferrite or soft magnetic metal powder material inductor housing, the cavity that two or more are used to hold coil and plug is set on the housing;
B. adopt soft magnetic ferrite or soft magnetic metal powder to make the plug of column structure;
C. adopt bidirectional screw winding method coiling air core coil with enamel covered wire;
D. plug is placed air core coil;
E. will place cavity on the housing with plug in air core coil, and be provided with the space between the chamber wall of the end face of plug and cavity, the lead-out wire of air core coil stretches out housing.
Inductor housing and plug can adopt soft magnetic ferrite MnZn, nickel zinc or soft magnetic metal reduced iron powder, making such as ferro-silicium magnetic, sendust magnetic, preferred ferro-silicium magnetic, the ferro-silicium magnetic has low-loss characteristics, can guarantee under big electric current, to work and temperature rise is lower, thereby promote the operating efficiency of entire device.In addition, the assembling air gap between housing and the plug can make the bigger electric current of inductance carrying and unsaturated.Adopt bidirectional screw winding method coiling air core coil, promptly air core coil is reeled along axle is oppositely outer simultaneously from the axially and radially both direction of circle body, coiling in opposite directions then, and this winding method can effectively reduce the D.C. resistance of coil.After coil winding was finished, its coil two lead-out wire partly stretched out housing, and the coating removal skin is also warded off tin and handled, and welded as plug-in unit leg and circuit board in order to lead-out wire.When needing, can make housing, plug and air core coil integrated, improve the structural strength of inductance coil greatly with casting glue with plug, air core coil and case bonding or directly use casting glue embedding cavity.
The beneficial effects of the utility model are: the magnet that it has solved effectively, and the volume that the discrete inductor of prior art exists is big, the integrated inductor of assembly technology complicated problems and prior art exists is broken easily, the bigger problem of mutual inductance between the inductance.The utility model volume is little, and assembling is simple, and sound construction and inductance influence each other little when independently using, can be widely used in the various DC converting circuit, characteristics, broad market prospect such as have small size, high efficiency, saturation current is big and temperature rise is little.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model integral inductor embodiment 1;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is a kind of structural representation of the utility model integral inductor plug;
Fig. 4 is a kind of structural representation of the utility model integral inductor embodiment 2;
Fig. 5 is a kind of structural representation of the utility model integral inductor embodiment 3;
Fig. 6 is the another kind of structural representation of the utility model integral inductor embodiment 4.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings the embodiment of technical solutions of the utility model is further described.
In Fig. 1 embodiment 1 shown in Figure 2, a kind of integral inductor, comprise magnetic core and coil, described magnetic core comprises housing 1 and plug 2, housing and plug are for dividing body structure, the cube structure that described housing is integrated, housing is provided with 2 cavitys 4 that hold coil and plug, described plug is the cylindrical-shaped structure (see figure 3), a plug is set in each cavity, be arranged with an air core coil 3 on each plug, the lead-out wire at air core coil two partly stretches out housing and forms leg 5.
The housing of embodiment 2 is a rectangular structure, offer the cavity of four rectangular structure on the housing, four cavitys (see figure 4) that is arranged in a linear, cavity big or small identical, spacing distance between the cavity equates that the opening of cavity is located on the same side of cuboid, and a plug is set in each cavity, be provided with the space between the chamber wall of the end face of plug and cavity, all the other are identical with embodiment 1.
The housing of embodiment 3 is provided with 6 cavitys, and cavity is double column structure to be arranged, 3 cavity (see figure 5)s of every row, and the cross section of plug is square structure, and all the other are identical with embodiment 2.
The housing of embodiment 4 is provided with 4 cavitys, and two plugs are set in each cavity, is arranged with an air core coil (see figure 6) on each plug, and all the other are identical with embodiment 2.
Except that the mandrel structure of circle, rectangular cross section, the cross section of plug also can adopt structures such as ellipse or polygon.
Be a specific embodiment of the manufacture method of integral inductor below:
A. adopt soft magnetic metal alloy F50 iron silicon materials to make the inductor housing, the overall dimension of housing is 11.5mm * 11.5mm * 11.5mm, and two cavitys that are used to hold coil and plug are set on the housing; Cavity is of a size of 8.5mm * 3.5mm * 9.5mm,
B. adopt soft magnetic metal alloy F50 iron silicon materials to make the plug of two Φ 4mm * 3.4mm;
C. adopt two internal diameter 4.40mm of bidirectional screw winding method coiling with Φ 1.5mm enamel covered wire, the air core coil of number of turns 2.75Ts is warded off tin and is handled behind its lead-out wire part coating removal skin;
D. plug is placed air core coil;
E. will place cavity on the housing with plug in air core coil, and be provided with the space between the chamber wall of the end face of plug and cavity, the lead-out wire of air core coil stretches out housing 5mm.
After the assembling of Contiuum type inductance is finished, with casting glue with plug, air core coil and case bonding or embedding cavity, and be placed in 120-140 ℃ the baking oven baking 20-40 minute, product behind the oven dry casting glue takes out, stamp corresponding characteristic at the product top and make code, promptly obtain a complete integral inductor.
Integral inductor has small size, high efficiency, saturation current and reaches greatly the characteristics such as temperature rise is little, frequency of utilization is wide, can be widely used in notebook computer, in the various DC converting circuits such as desktop computer, server.
Claims (8)
1. integral inductor, comprise magnetic core and coil, it is characterized in that: described magnetic core comprises housing and plug, housing and plug are for dividing body structure, the rectangular structure that described housing is integrated, housing are provided with several cavitys that holds coil and plug, and described plug is column structure, be arranged in the cavity on the housing, be arranged with air core coil on the plug.
2. integral inductor according to claim 1 is characterized in that the opening of described cavity is arranged on the same one side of cuboid.
3. integral inductor according to claim 1 is characterized in that the cross section of described plug is circular, ellipse, rectangle or polygonized structure.
4. integral inductor according to claim 2 is characterized in that described cavity is a rectangular structure, and the quantity of cavity is more than or equal to two, cavity big or small identical.
5. integral inductor according to claim 2 is characterized in that described cavity is arranged in a linear, and the spacing distance between the cavity equates.
6. integral inductor according to claim 5 is characterized in that described cavity is single-row or the multiple row structure.
7. integral inductor according to claim 1 is characterized in that being provided with in the described cavity one or several plugs.
8. according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7 described integral inductors, it is characterized in that being provided with the space between the chamber wall of the end face of described plug and cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010203011908U CN201725649U (en) | 2010-01-21 | 2010-01-21 | Integrated inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010203011908U CN201725649U (en) | 2010-01-21 | 2010-01-21 | Integrated inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201725649U true CN201725649U (en) | 2011-01-26 |
Family
ID=43493997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010203011908U Expired - Fee Related CN201725649U (en) | 2010-01-21 | 2010-01-21 | Integrated inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201725649U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101777414B (en) * | 2010-01-21 | 2012-02-01 | 横店集团东磁股份有限公司 | Integral inductor and manufacturing method thereof |
| CN109509944A (en) * | 2018-12-06 | 2019-03-22 | 合肥本源量子计算科技有限责任公司 | A kind of powder microwave filter and preparation method thereof |
-
2010
- 2010-01-21 CN CN2010203011908U patent/CN201725649U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101777414B (en) * | 2010-01-21 | 2012-02-01 | 横店集团东磁股份有限公司 | Integral inductor and manufacturing method thereof |
| CN109509944A (en) * | 2018-12-06 | 2019-03-22 | 合肥本源量子计算科技有限责任公司 | A kind of powder microwave filter and preparation method thereof |
| CN109509944B (en) * | 2018-12-06 | 2021-07-13 | 合肥本源量子计算科技有限责任公司 | A kind of powder microwave filter and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103928218A (en) | Magnetic Device With High Saturation Current And Low Core Loss | |
| CN102163489B (en) | Series integrated inductive device | |
| CN203013486U (en) | Micro flyback transformer | |
| CN101777414B (en) | Integral inductor and manufacturing method thereof | |
| CN104575947A (en) | Inductor and manufacturing method thereof | |
| CN204407125U (en) | Inductance structure | |
| CN103578695A (en) | Annular inductor | |
| CN201725649U (en) | Integrated inductor | |
| CN201036112Y (en) | New inductor with magnetically shielded coil | |
| CN203118729U (en) | Novel UUI magnetic core | |
| CN201556524U (en) | Electronic type current transformer with PCB Rockwell coil | |
| CN206116158U (en) | High -frequency transformer | |
| CN205723097U (en) | A kind of Novel chip inductor | |
| CN206271516U (en) | A kind of magnetic element | |
| CN204102675U (en) | A kind of novel magnetic elements core structure | |
| CN203895230U (en) | Novel UUI magnetic core | |
| CN103779040A (en) | High-power density inductor | |
| CN204189549U (en) | A kind of miniature magnetic bead inductor | |
| CN220569538U (en) | Common mode and differential mode integrated inductor | |
| CN202871545U (en) | Current transformer adopting hollow coil | |
| CN202818665U (en) | Choke coil for electromagnetic oven and electromagnetic oven main loop circuit | |
| CN206893410U (en) | A kind of soft magnetic ferrite combined magnet core | |
| CN204189550U (en) | A Flat Integrated Inductor | |
| CN202957114U (en) | Double E-shaped inductor | |
| CN203588813U (en) | Structure of Chip Inductor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110126 Termination date: 20170121 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |